No-op monitoring backend. More...

#include <null_monitoring_backend.h>

Inheritance diagram for database::integrated::adapters::backends::null_monitoring_backend:

Collaboration diagram for database::integrated::adapters::backends::null_monitoring_backend:

Public Member Functions
	null_monitoring_backend (const db_monitoring_config &)

	~null_monitoring_backend () override=default

common::VoidResult	initialize () override
	Initialize the monitoring backend.

common::VoidResult	shutdown () override
	Shutdown the monitoring backend gracefully.

bool	is_initialized () const override
	Check if backend is initialized.

common::VoidResult	record_metric (const std::string &, double) override
	Record a metric value.

common::VoidResult	record_metric (const std::string &, double, const std::unordered_map< std::string, std::string > &) override
	Record a metric value with tags.

common::Result< metrics_snapshot >	get_metrics () override
	Get current metrics snapshot.

common::Result< health_check_result >	check_health () override
	Perform health check.

common::VoidResult	reset () override
	Reset all metrics.

void	record_query_execution (std::chrono::microseconds, bool) override
	Record query execution.

void	record_connection_acquired () override
	Record connection acquisition.

void	record_connection_released () override
	Record connection release.

void	update_pool_stats (std::size_t, std::size_t, std::size_t) override
	Update connection pool statistics.

void	record_transaction_begin () override
	Record transaction begin.

void	record_transaction_commit () override
	Record transaction commit.

void	record_transaction_rollback () override
	Record transaction rollback.

common::Result< database_metrics >	get_database_metrics () override
	Get database-specific metrics.

std::string	export_prometheus_metrics () override
	Export metrics in Prometheus format.

Public Member Functions inherited from database::integrated::adapters::backends::monitoring_backend
virtual	~monitoring_backend ()=default

Detailed Description

No-op monitoring backend.

This backend discards all metrics and operations. All methods are no-ops. Useful for disabling monitoring without changing client code.

Definition at line 37 of file null_monitoring_backend.h.

Constructor & Destructor Documentation

◆ null_monitoring_backend()

database::integrated::adapters::backends::null_monitoring_backend::null_monitoring_backend ( const db_monitoring_config & )

inlineexplicit

Definition at line 40 of file null_monitoring_backend.h.

40{}

◆ ~null_monitoring_backend()

database::integrated::adapters::backends::null_monitoring_backend::~null_monitoring_backend ( )

overridedefault

Member Function Documentation

◆ check_health()

common::Result< health_check_result > database::integrated::adapters::backends::null_monitoring_backend::check_health ( )

inlineoverridevirtual

Perform health check.

Returns: Health check result

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 75 of file null_monitoring_backend.h.

    {
        return health_check_result{ health_status::healthy, "Monitoring disabled", {} };
    }

References database::integrated::adapters::backends::healthy.

◆ export_prometheus_metrics()

std::string database::integrated::adapters::backends::null_monitoring_backend::export_prometheus_metrics ( )

inlineoverridevirtual

Export metrics in Prometheus format.

Returns: Prometheus-formatted metrics string

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 125 of file null_monitoring_backend.h.

    {
        return "# Monitoring disabled\n";
    }

◆ get_database_metrics()

common::Result< database_metrics > database::integrated::adapters::backends::null_monitoring_backend::get_database_metrics ( )

inlineoverridevirtual

Get database-specific metrics.

Returns: Database metrics on success

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 120 of file null_monitoring_backend.h.

    {
        return database_metrics{};
    }

◆ get_metrics()

common::Result< metrics_snapshot > database::integrated::adapters::backends::null_monitoring_backend::get_metrics ( )

inlineoverridevirtual

Get current metrics snapshot.

Returns: Metrics snapshot on success

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 70 of file null_monitoring_backend.h.

    {
        return metrics_snapshot{};
    }

◆ initialize()

common::VoidResult database::integrated::adapters::backends::null_monitoring_backend::initialize ( )

inlineoverridevirtual

Initialize the monitoring backend.

Returns: VoidResult::ok() on success, error on failure

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 43 of file null_monitoring_backend.h.

    {
        return common::ok();
    }

References common::ok().

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◆ is_initialized()

bool database::integrated::adapters::backends::null_monitoring_backend::is_initialized ( ) const

inlineoverridevirtual

Check if backend is initialized.

Returns: true if initialized and ready

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 53 of file null_monitoring_backend.h.

    {
        return true;
    }

◆ record_connection_acquired()

void database::integrated::adapters::backends::null_monitoring_backend::record_connection_acquired ( )

inlineoverridevirtual

Record connection acquisition.

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 90 of file null_monitoring_backend.h.

    {
        // No-op
    }

◆ record_connection_released()

void database::integrated::adapters::backends::null_monitoring_backend::record_connection_released ( )

inlineoverridevirtual

Record connection release.

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 95 of file null_monitoring_backend.h.

    {
        // No-op
    }

◆ record_metric() [1/2]

common::VoidResult database::integrated::adapters::backends::null_monitoring_backend::record_metric	(	const std::string &	name,
		double	value )

inlineoverridevirtual

Record a metric value.

Parameters

name	Metric name
value	Metric value

Returns: VoidResult::ok() on success

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 58 of file null_monitoring_backend.h.

    {
        return common::ok();
    }

References common::ok().

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◆ record_metric() [2/2]

common::VoidResult database::integrated::adapters::backends::null_monitoring_backend::record_metric	(	const std::string &	name,
		double	value,
		const std::unordered_map< std::string, std::string > &	tags )

inlineoverridevirtual

Record a metric value with tags.

Parameters

name	Metric name
value	Metric value
tags	Metric tags/labels

Returns: VoidResult::ok() on success

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 63 of file null_monitoring_backend.h.

    {
        return common::ok();
    }

References common::ok().

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◆ record_query_execution()

void database::integrated::adapters::backends::null_monitoring_backend::record_query_execution	(	std::chrono::microseconds	duration,
		bool	success )

inlineoverridevirtual

Record query execution.

Parameters

duration	Query execution duration
success	Whether query succeeded

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 85 of file null_monitoring_backend.h.

    {
        // No-op
    }

◆ record_transaction_begin()

void database::integrated::adapters::backends::null_monitoring_backend::record_transaction_begin ( )

inlineoverridevirtual

Record transaction begin.

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 105 of file null_monitoring_backend.h.

    {
        // No-op
    }

◆ record_transaction_commit()

void database::integrated::adapters::backends::null_monitoring_backend::record_transaction_commit ( )

inlineoverridevirtual

Record transaction commit.

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 110 of file null_monitoring_backend.h.

    {
        // No-op
    }

◆ record_transaction_rollback()

void database::integrated::adapters::backends::null_monitoring_backend::record_transaction_rollback ( )

inlineoverridevirtual

Record transaction rollback.

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 115 of file null_monitoring_backend.h.

    {
        // No-op
    }

◆ reset()

common::VoidResult database::integrated::adapters::backends::null_monitoring_backend::reset ( )

inlineoverridevirtual

Reset all metrics.

Returns: VoidResult::ok() on success

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 80 of file null_monitoring_backend.h.

    {
        return common::ok();
    }

References common::ok().

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◆ shutdown()

common::VoidResult database::integrated::adapters::backends::null_monitoring_backend::shutdown ( )

inlineoverridevirtual

Shutdown the monitoring backend gracefully.

Returns: VoidResult::ok() on success, error on failure

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 48 of file null_monitoring_backend.h.

    {
        return common::ok();
    }

References common::ok().

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◆ update_pool_stats()

void database::integrated::adapters::backends::null_monitoring_backend::update_pool_stats	(	std::size_t	active,
		std::size_t	idle,
		std::size_t	total )

inlineoverridevirtual

Update connection pool statistics.

Parameters

active	Number of active connections
idle	Number of idle connections
total	Total pool size

Implements database::integrated::adapters::backends::monitoring_backend.

Definition at line 100 of file null_monitoring_backend.h.

    {
        // No-op
    }

The documentation for this class was generated from the following file:

database/integrated/adapters/backends/null_monitoring_backend.h

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ null_monitoring_backend()

◆ ~null_monitoring_backend()

Member Function Documentation

◆ check_health()

◆ export_prometheus_metrics()

◆ get_database_metrics()

◆ get_metrics()

◆ initialize()

◆ is_initialized()

◆ record_connection_acquired()

◆ record_connection_released()

◆ record_metric() [1/2]

◆ record_metric() [2/2]

◆ record_query_execution()

◆ record_transaction_begin()

◆ record_transaction_commit()

◆ record_transaction_rollback()

◆ reset()

◆ shutdown()

◆ update_pool_stats()